Wyoming Snow Precipitation Update
United States Natural Resources Water and Climate Center
Department of Conservation Portland, Oregon
Agriculture Service
S N O W - P R E C I P I T A T I O N U P D A T E
Based on Mountain Data from NRCS SNOTEL Sites
As of FRIDAY: OCTOBER 26 , 2007
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BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
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WYOMING
SNAKE RIVER
BASE CAMP 7030 1.1 .5 220* 5.0 1.7 294
COTTONWOOD CREEK 7600 1.9 .7 271* 5.0 2.5 200
GRANITE CREEK 6770 1.3 .4 325* 4.1 1.5 273
GRASSY LAKE 7265 1.2 1.1 109* 5.8 2.8 207
GROS VENTRE SUMMIT 8750 2.0 1.1 182* 4.0 1.5 267
LEWIS LAKE DIVIDE 7850 1.3 .9 144* 5.6 2.7 207
PHILLIPS BENCH 8200 1.5 1.0 150* 5.0 2.0 250
SALT RIVER SUMMIT 7600 .2 .3 67* 2.5 1.6 156
SNAKE RIVER STATION 6920 .1 .4 25* 4.6 1.9 242
SPRING CREEK DIVIDE 9000 1.9 1.1 173* 3.4 2.2 155
THUMB DIVIDE 7980 1.0 .6 167* 4.3 1.7 253
TOGWOTEE PASS 9580 4.6 2.1 219* 5.6 2.3 243
TWO OCEAN PLATEAU 9240 5.8 2.5 232* 6.1 2.6 235
WILLOW CREEK 8450 2.5 1.4 179* 6.4 3.1 206
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Basin wide percent of average 187* 224
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 4.5 2.2 205* 4.4 1.8 244
BLACK BEAR 8170 3.6 2.2 164* 5.9 2.9 203
CANYON 8090 1.2 .5 240* 3.9 1.5 260
FISHER CREEK 9100 5.7 2.2 259* 6.7 2.7 248
MADISON PLATEAU 7750 1.6 1.2 133* 4.7 2.1 224
NORTHEAST ENTRANCE 7350 -M .2 * -M 1.3 *
PARKER PEAK 9400 4.2 2.1 200* 5.3 1.9 279
SYLVAN LAKE 8420 2.0 1.6 125* 5.6 2.2 255
THUMB DIVIDE 7980 1.0 .6 167* 4.3 1.7 253
TWO OCEAN PLATEAU 9240 5.8 2.5 232* 6.1 2.6 235
WHISKEY CREEK 6800 .9 .6 150* 4.3 1.9 226
WHITE MILL 8700 4.1 1.6 256* 5.1 2.3 222
WOLVERINE 7650 .0 .4 0* 3.2 1.5 213
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Basin wide percent of average 195* 237
WIND RIVER
BURROUGHS CREEK 8750 2.0 .8 250* 3.9 1.4 279
COLD SPRINGS 9630 .2 .8 25* 2.3 1.6 144
DEER PARK 9700 1.7 2.0 85 3.1 2.1 148
HOBBS PARK 10100 1.5 1.7 88* 3.1 1.8 172
LITTLE WARM 9370 1.1 .9 122* 3.1 1.5 207
SOUTH PASS 9040 .3 1.2 25* 2.2 1.8 122
ST. LAWRENCE ALT 8620 .2 .6 33* 1.4 1.5 93
TOGWOTEE PASS 9580 4.6 2.1 219* 5.6 2.3 243
TOWNSEND CREEK 8700 .3 .8 37* 2.4 1.8 133
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Basin wide percent of average 109* 172
BIGHORN BASIN
BALD MTN. 9380 2.9 2.3 126* 3.7 2.0 185
BEAR TRAP MEADOW 8200 .6 .5 120* 1.8 1.5 120
BLACKWATER 9780 5.0 2.6 192* 4.8 2.3 209
BONE SPRINGS DIV 9350 2.1 2.2 95 3.8 2.1 181
EVENING STAR 9200 4.1 2.2 186* 6.2 2.3 270
GRAVE SPRINGS 8550 1.1 .8 138* 2.5 1.8 139
KIRWIN 9550 3.4 1.5 227 4.7 1.5 313
MARQUETTE 8760 .8 1.6 50 2.9 1.9 153
MIDDLE POWDER 7760 2.0 1.1 182* 2.4 2.2 109
OWL CREEK 8975 .7 .7 100 2.3 1.0 230
POWDER RIVER PASS 9480 1.2 1.0 120* 3.1 1.6 194
SHELL CREEK 9580 3.9 2.3 170 4.6 1.7 271
SYLVAN LAKE 8420 2.0 1.6 125* 5.6 2.2 255
SYLVAN ROAD 7120 .5 .4 125* 4.9 1.8 272
TIMBER CREEK 7950 .1 .7 14 3.0 1.4 214
YOUNTS PEAK 8350 2.0 1.1 182* 5.3 1.5 353
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Basin wide percent of average 143* 214
SHOSHONE RIVER
BLACKWATER 9780 5.0 2.6 192* 4.8 2.3 209
EVENING STAR 9200 4.1 2.2 186* 6.2 2.3 270
KIRWIN 9550 3.4 1.5 227 4.7 1.5 313
MARQUETTE 8760 .8 1.6 50 2.9 1.9 153
SYLVAN LAKE 8420 2.0 1.6 125* 5.6 2.2 255
SYLVAN ROAD 7120 .5 .4 125* 4.9 1.8 272
YOUNTS PEAK 8350 2.0 1.1 182* 5.3 1.5 353
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Basin wide percent of average 162* 255
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .6 .5 120* 1.8 1.5 120
BIG GOOSE 7990 1.6 .7 229* 4.0 1.8 222
BONE SPRINGS DIV 9350 2.1 2.2 95 3.8 2.1 181
BURGESS JUNCTION 7880 1.4 1.2 117* 3.2 1.9 168
CLOUD PEAK RESERVOIR 9860 2.7 1.2 225* 5.1 2.2 232
DOME LAKE 8880 1.9 1.5 127 4.4 2.1 210
GRAVE SPRINGS 8550 1.1 .8 138* 2.5 1.8 139
HANSEN SAWMILL 8360 .8 .7 114 2.7 1.5 180
MIDDLE POWDER 7760 2.0 1.1 182* 2.4 2.2 109
POWDER RIVER PASS 9480 1.2 1.0 120* 3.1 1.6 194
SUCKER CREEK 8880 1.7 1.1 155* 3.4 2.0 170
TIE CREEK 6870 .0 .6 0* 2.9 2.1 138
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Basin wide percent of average 136* 172
BELLE FOURCHE
BLIND PARK 6890 .1 .4 25* 1.5 2.2 68
COLE CANYON 5910 .0 .6 0* 1.2 -M *
NORTH RAPID CREEK 6130 .0 .4 0* 1.1 2.1 52
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Basin wide percent of average 7* 60
UPPER N. PLATTE RIVER
COLUMBINE 9160 .0 .6 0* 3.6 2.0 180
DIVIDE PEAK 8860 1.3 1.4 93* 2.6 2.3 113
ELK RIVER 8700 -M .5 * 3.2 1.9 168
JOE WRIGHT 10120 2.2 2.0 110* 4.8 2.8 171
NORTH FRENCH CREEK 10130 2.3 2.6 88* 3.8 2.8 136
OLD BATTLE 9920 2.5 2.5 100* 4.3 3.0 143
SAGE CREEK BASIN 7850 .0 .8 0* 2.1 1.3 162
SOUTH BRUSH CREEK 8440 1.0 .6 167* 3.1 2.2 141
TOWER 10500 2.7 2.7 100* 4.7 3.3 142
WEBBER SPRINGS 9250 1.3 1.5 87* 3.5 2.6 135
WILLOW CREEK PASS 9540 2.1 .9 233* 3.0 1.7 176
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Basin wide percent of average 99* 149
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 1.1 1.8 61* 2.6 2.1 124
CASPER MTN. 7850 1.6 1.4 114* 3.3 2.1 157
DEADMAN HILL 10220 2.4 1.8 133* 3.3 2.1 157
DEER PARK 9700 1.7 2.0 85 3.1 2.1 148
LAPRELE CREEK 8375 .7 .8 87* 2.2 1.6 138
RENO HILL 8500 2.0 1.4 143* 3.6 2.1 171
ROACH 9700 1.9 .9 211* 3.2 1.9 168
SAND LAKE 10050 3.6 2.7 133* 4.2 2.6 162
SOUTH PASS 9040 .3 1.2 25* 2.2 1.8 122
WINDY PEAK 7900 .8 .4 200* 1.8 1.5 120
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Basin wide percent of average 112* 148
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .1 .4 25* 2.0 1.6 125
DIVIDE PEAK 8860 1.3 1.4 93* 2.6 2.3 113
OLD BATTLE 9920 2.5 2.5 100* 4.3 3.0 143
SANDSTONE RS 8150 .0 .4 0* 2.2 1.9 116
WHISKEY PARK 8950 1.0 1.3 77* 3.7 2.4 154
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Basin wide percent of average 82* 132
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.0 1.0 100* 2.0 1.5 133
BLIND BULL SUM 8900 1.8 1.3 138* 3.1 1.9 163
EAST RIM DIVIDE 7930 .0 .5 0* 2.1 1.1 191
ELKHART PARK G.S. 9400 1.1 .7 157* 2.6 1.6 162
GROS VENTRE SUMMIT 8750 2.0 1.1 182* 4.0 1.5 267
KENDALL R.S. 7740 .3 .5 60* 2.3 1.3 177
LOOMIS PARK 8240 1.0 .7 143* 2.5 1.5 167
NEW FORK LAKE 8340 .6 .4 150* 2.3 1.3 177
SNIDER BASIN 8060 .2 .6 33* 1.7 1.4 121
SPRING CREEK DIVIDE 9000 1.9 1.1 173* 3.4 2.2 155
TRIPLE PEAK 8500 1.4 .9 156* 4.5 1.9 237
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Basin wide percent of average 128* 177
LOWER GREEN RIVER
HAMS FORK 7840 .0 .3 0* 1.6 1.2 133
HEWINTA 9500 .0 .7 0* 4.3 2.0 215
HICKERSON PARK 9100 .3 .3 100* 2.9 1.5 193
HOLE-IN-ROCK 9150 .4 .3 133* 3.4 1.4 243
INDIAN CREEK 9425 1.7 1.2 142* 2.8 2.2 127
KELLEY R.S. 8180 .6 .7 86* 2.8 1.8 156
STEEL CREEK PARK 10100 3.9 1.4 279* 4.6 1.9 242
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Basin wide percent of average 141* 187
UPPER BEAR RIVER
BUG LAKE 7950 .1 1.0 10* 1.5 1.9 79
HAYDEN FORK 9100 .2 .7 29* 3.3 2.0 165
KELLEY R.S. 8180 .6 .7 86* 2.8 1.8 156
LILY LAKE 9050 .4 .8 50* 3.4 2.0 170
MONTE CRISTO 8960 .2 1.3 15* 3.4 2.3 148
SALT RIVER SUMMIT 7600 .2 .3 67* 2.5 1.6 156
TRIAL LAKE 9960 1.2 1.6 75* 2.7 2.3 117
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Basin wide percent of average 45* 141
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-M = Missing data
* = Data may not provide a valid measure of conditions.
Units = inches for the Current and Average Snow Water Equivalent and
Total Precipitation values
If the Basin wide percent of average value is flagged as potentially
invalid, care should be taken to evaluate if the value is representative
of conditions in the basin.
The SNOW WATER EQUIVALENT Percent of Average represents the snow water
equivalent found at selected SNOTEL sites in or near the basin compared to
the average value for those sites on this day.
The TOTAL PRECIPITATION Percent of Average represents the total precipitation
(beginning October 1st) found at selected SNOTEL sites in or near the basin
compared to the average value for those sites on this day.
Contact your state water supply staff for assistance.
Reference period for average conditions is 1971-2000.
Provisional data, subject to revision.
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-M = Missing data
* = Data may not provide a valid measure of conditions.
Units = inches for the Current and Normal Snow Water Equivalent and
Total Precipitation values
If the Basin Index (%) value is flagged as potentially
invalid, care should be taken to evaluate if the value is representative
of conditions in the basin.
The SNOW WATER EQUIVALENT Percent of Median represents the snow water
equivalent found at selected SNOTEL sites in or near the basin compared to
the Median value for those sites on this day.
The TOTAL PRECIPITATION Percent of Average represents the total precipitation
(beginning October 1st) found at selected SNOTEL sites in or near the basin
compared to the Average value for those sites on this day.
Contact your state water supply staff for assistance.
Medians and averages are calculated for the period 1981-2010.
Provisional data, subject to revision.
* Site -- Either: (a) the current value is missing; (b) the median or
average for the day is not available or is zero; or (c) for snow water
equivalent, the median for the day is less than 10% of the maximum
median value for the year.
* Basin - More than half of the sites within the basin are flagged with *,
preventing the calculation of a meaningful basin index.
The basin index is calculated as the sum of the valid current values
divided by the sum of the corresponding medians (for snow water equivalent)
or averages (for precipitation) and the resulting fraction multiplied by 100.